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MMLU / Two simple pendulums A and B consist of identical masses suspended from strings…

Problem

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question

Two simple pendulums A and B consist of identical masses suspended from strings of length L_A and L_B, respectively. The two pendulums oscillate in equal gravitational fields. If the period of pendulum B is twice the period of pendulum A, which of the following is true of the lengths of the two pendulums?

choices

  1. L_B = 4L_A
  2. L_B = 2L_A
  3. L_B = L_A
  4. L_B = 1/2 L_A

subject

college_physics

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